Every email provider is different when it comes to attachments. They may allow for a larger attachment to be sent then received (or vice versa). Not only does the outgoing server must support your email size, but the receiving server must also be able to receive the file size. In addition, this increases the size of the email, and means more data is used to get the email. This maybe a hard pill to swallow with someone on a limited data plan.
With that being said, if I have more than a few files, or files will be large in size, I will create a .zip file with all of the files I would want to give you. I will then include the link to the file. The link will always start with https://fsp.zip/ and end in .zip. The remaining filename will be the date/time stamp of when the file was created. While this may seem impersonal, having a structured file naming convention will always be the best solution. Since the file is a link, you aren’t using your potentially valuable cellular data, and can choose to download the file when you are home or at work where you would likely have unlimited data caps. I will typically keep the file up for 30 days unless you informed me that you received the file before hand. fsp.zip is not meant to be a hosting service.